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Shalnov [3]
4 years ago
10

Simplify (4i)(–5i)(6i) –120 –120i(incorrect) 120i 120

Mathematics
1 answer:
professor190 [17]4 years ago
4 0

Answer:

120i

Step-by-step explanation:

;i × i = -1....so hence

4i × (-5i) = -20 i^2...which is -20(-1) = 20....

then you multiply with 6i

20(6i) = 120i

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Step-by-step explanation:

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Delvig [45]

Answer:

The answer is 3x=50-10y

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The graph of the function, B(x), is shown below. Determine the following values for the function:
Softa [21]

Answer:

B(-1) = 1\\\\B(3) = 0\\\\B(1) =2  

Step-by-step explanation:

By definition, a relation is a function if each input value has one and only one output value.

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Given:

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We can identify that we need to find the output values of these input values:

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Observe in the graph attached that:

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7 0
3 years ago
Tyrod needs at least $820 to buy the computer he wants. He has already saved $330. He earns $50 per lawn that he cuts. What is t
Ksju [112]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

The equation representing the given statement is ~

  • 50x + 330 \geqslant 820

The least number of lawns that he can cut and buy the computer is 10 lawns ~

\large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}

Total savings should be greater or equal to $ 820 in order to buy the computer,

And his total savinga is equal to ~

Money he saved + money got from cutting lawns.

let's assume the lawns cut by Tyrod be x,

Money earned by cutting lawns is equal to

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  • 50x

total savings is equal to ~

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hence,

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by solving for " x (number of lawns cut) " we get ~

  • 50x  \geqslant 820 - 330

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  • x  \geqslant 490 \div 50

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Hence, the least number of lawns he has to cut is the number that is greater than 9.8, which is

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6 0
2 years ago
1 ÷ 7<br><br><br> pls help me<br> hi)
goldfiish [28.3K]

Answer:

7 lol

Step-by-step explanation:

self explanatory-

but you divide 1 by 7 you get 7

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